cells and systems Flashcards
mechanical digestion
physical breakdown of food
chemical digestion
breakdown of food particles using enzymes
peristalsis
wave like muscle contracts along the digestive system
gastric juice
stomach acid
villi
small like projections on the inner surface of the small intestine that absorb nutrients
microvilli
finger like projections that on the cells that line the villi
bronchi
two main branches of the trachea that lead into the lungs
diaphragm
large muscle below the lungs that move in and out
organ
group of tissues
capillaries
tiny blood vessels that connect viens and artiries
veins
blood vessels that return blood to the heart
arteries
blood vessels that take blood from the heart
functions
the task
stimulus
any change in an organs enviroment
cells
basic unit of life
compound light microscope
more than one lense
microscopes
optical device used for viewing microscopic items
react
to respond
interact
to work together
epithelial tissue
covers the surface of the body and lines some of the organs
selectively permeable
mycoplasma
chloroplasts
cell membrane
valcoules
tissues
field of view
organelles
nudeus
mitochandria
ventricles